Hydrocarbon-burner.



Patented Ian. 29, l90l.

J. B. NEU-IENDORFF. HYDRocABN BURNER.

(Application. led Feb. 21, 1900.)

(No Model.)

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'NTTE STATES PATENT Trios.

JOHN B.-NEUENDORFF, OF SAN ANTONIO, TEXAS.

HYDRQCARBON-QBURNER.

SPECIFICATION forming part of Letters Patent N o. 666,685, dated January 29, 1901. Application led February 21, 1.900. Serial No. 6,093. (No model.)

To @ZZ whom t may concern.-

Be it known that I, JOHN B. NEUENDORFF, a citizen of the United States, residing at San Antonio, in the county of Bexar and State of Texas, have invented a new and useful Hydrocarbon-Burner, of which the following is a specification.

My invention relates to improvements in hydrocarbon-burners of that class which are employed in apparatus for destroying vegetable growths, such as cactusplants, for heating asphaltum, for concrete and surface dry ing, and for other purposes where great heat is required. In burners for this purpose it is necessary that the heat and flame shall be directed in a downward direction, and according to my invention this heat is utilized in part for vaporizing the hydrocarbon and for superheating the vapor, which is caused to pass in an upward direction through the burner, to the end that economy in fuel is attained and the vapor in a highly-heated state and under considerable pressure is supplied to the flame-port for consumption.

The presentinvention resides in the burner comprising the vaporiZing-coil,which is closed at one end and has its other end connected to a superheating-coil, said coils being separated one from the other, anda liquid-induction pipe extending through and conforming to the convolutions of the Vaporizing-coil, said induction-pipe being exposed to the action of the heated vapor traversing the vaporizing-coil and said pipe discharging its contents at or near the closed end of said coil.

A further object of the invention is to provide a burner with a jacket which serves to confine the products of combustion in effect-- ive contact with the vaporizing and superheating coils, so that the former will be practically enveloped by the flame and insuring a sufficient supply of air to properly maintain the combustion within the jacket and coils.

Further objects and advantages of the in-V vention will appear in the course of the subjoined description, and the novel features of construction and combination of parts will be more fully pointed out in the claims.

, In the drawings, Figure 1 is a sectional elevation of a hydrocarbon-burner constructed in accordance with this invention. Fig. 2 is a detail cross-section in the plane of the dotted line 2 2 on Fig. 1. Fig. 3 is a similar cross-section on the line 3 3 of Fig. l. Fig. tis a sectional elevation illustrating` another embodiment of my hydrocarbon burner. Fig. 5 is a sectional plan view, on a reduced scale, in a plane intermediate of the coils in Fig. 4 and illustrating more clearly the corrugated jacket which envelops the Vaporizing and superheating coils of the burner.

The same numerals of reference are used to indicate like and corresponding parts in each of the several figures of the drawings.

In carrying my invention into practice I employ a primary vaporizing-c'oil 10, the axis of whichis vertical. One end (the upper) of this coil is closed-as, for example, by the cap ll-and from the base of the coil extends a branch l2, which is turned upwardly after it clears the coil and preferably terminates on a plane above the'upper convolution of the coil. A T-coupling 13 has one branch thereof united to the branch 12 of the coil, and this coupling serves to operatively connect the liquid-induction pipe to the vaporizing-coil and also to connect the last-mentioned coil to the superheating-coil 14. This coil 14 lies a short distance above, and preferably in the vertical plane of, the Vaporizing-coil, and the base 15 of this superheating-coil is extended to and united with another arm of the Tcoupling 13, so that the vaporizing and su perheating coils arein communication with each other. The uppermost coil of the superheater 14 is extended vertically, as at 16, and is united by an elbow-coupling to a horizontal branch 17, the latter constituting the perforated branch of the burner, because it is provided with one or more flame -ports 18. This perforated branch overhangs the superheating-coil, and the dame-ports 18 are provided in the under side of said branch, the yend of the latter being closed-as, for example, by the cap 19.

In the embodiment of the invention shown by Fig. 1 a stuffing-box 20 is arranged in a vertical position and has one end screwed into the T-coupling 13 in order that the liquid-induction pipe 25 may be arranged in a vertical position, so as to extend through the branch 12 and thence into thev vaporizing- IOO rIo

coil; but this arrangement of the inductionpipe is not essential, because the vaporizingcoil may be closed at its lower end and the branch 12 be provided a-t its upper end, as shown by Fig. 4, in which eventthe coupling 13 is arranged or fashioned to unite the discharge end of the vaporizing-coil to the receiving end of the superheating-coil. This arrangement necessitates the -placing of the' stuting-box 2O in a horizontal position, s0V

that the liquid-induction pipe may be carried horizontally throughthe stuffing-box, the coupling, and the upper horizontal branch of.

the vaporizing-coil, all as clearly shown by Fig. 4. This stuffing-box isprovided with an enlarged and female threaded portion, which is adapted to receive a suitable packing 21 and a packing-ring 22. A pipe-coupling 23 is screwed into this threaded portion of the stnfling-box,so as t impinge against the packing-ring and to compress the packing 21, thereby producing a gas-tight joint at the junction of the pipe-coupling and the stuffingbox and also providing a similar joint around the inlet end 26 of the induction-pipe 25, whereby leakage of the vapor is wholly prevented. This pipe-coupling 23 is enlarged and interiorly threaded to accommodate a strainer 24 and to receive one end of the liquid-feed pipe. (Not shown.) The inlet end 26 of the induction-pipe lies within the passage of the coupling 23, from whence it extends through the packing-ring and the packing through the stufling box 20, thence through the coupling 13, thence through the' branch of the vaporizing-coil, and finally the convolutions of this induction-pipe conform to and are contained within the similar convolutions of the vaporizing-coil, so that the discharge end 27 of this induction-pipe terminates at or near the closed end of the vap-l orizing-coil.

part of the su perheating-coil and the top part of the vaporizing-coil. which is conveyed through the ind uction-pipe, begins to be exposed to the action of the'heat at the point where the induction-pipe enters the coupling 13, and from this point to vthe discharge -end 27 of the induction-pipe the liquid is exposed to the heat of the vapor, which traverses the coil 10, thereby heating the liquid up to the point of its discharge in the vaporizing-coil. The liquid supplied Vby the induction-pipe is vaporized on its discharge into the coil 10, and the vapor thus generated traverses the full length of the coil in an opposite direction to the course The hydrocarbon pursued by the liquid, which iows through the con volutions of the induction-pipe, whereby the latter throughout its length within the vaporizing-coil and its branch is exposed to the action of the heated vapor. The vapor from the'branch of,the coil10 passes into the base of the superheating-coil 14, and thence flows through the extension 16 into the perforatedbranch 17, whereby the Vapor traversing the highly-heated coil 14 is superheated therein.

"In ythe construction of the burner shown by Fig. .1 the vapor passes through the coil 10in a downward direction, and thence Hows continuously in an upward direction through the branch 12,the coupling, and the superheatingcoil to theflame-port; but in the construction of burner shown by Fig. 4 the vapor passes continnously in an upward direction through thevaporizing-coil, the coupling, and the superheating-coil. It is Well known that vapor has a tendency to rise or ascend, and the burner of Fig. 4 is constructed with special reference to utilizing this natural tendency of the vapor. The employment of the packing and the packing-ring within'the stuffing-box and around the inner end of the induction-pipe o'vercomes leakage of the vapor at the `point where the induction-pipe enters the Vapor. The liquid, which is supplied by the feedpipe, must first traverse the strainer 24, which prevents refuse from passing into the burner and clogging the passagestherein The parts olf the burner are readily separable for inspectionand repairs, and the burner may be readily assembled in manufacturing the sain e. In the burner of this class it is desirable to insure an equable distribution of the heat to the vaporzing and superheating coils to continethe heat, iiame, and products of combustion in a manner which insures envelopment ,i of both-coils'thereby.

It will be understood that whenthe burnerl: is in service the flame and heat from the port; or ports 18 in the perforated pipe 17 are projected downwardly into and through the snperheating-coil, so as t0 envelop the vaporizing-coil; but as the two coils are separated or?. spaced a short distance apart the flame has a tendency to divide at the line Where the coils are spaced, thus permitting the {iame to play', at or about the plane of the base member of through the space and act against the'bottom the vaporizing-coil 10. The 'jacket is corrugated longitudinally to form a series of vertical fines or passages 29, which are situated externally to the coils and serve to conduct the heat 'lengthwise of the burner, whereby the heat is confined around the coils by the jacketand its iiues serve to conduct the heat and liame in a manner to envelop the vaporizing-coil and to conduct air to the confined flame. AIt is to be observed that the iiaine is projected in a downward direction from the port or ports 18 through the upper superheating-coil, so that it will divide at the space which separates the upper coil from the lower coil. This division in the liame is confined by the corrugated jacket in amanner to envelop the coils externally, and the jacket is thus adapted to serve as a means for confining the heat and insuring` equable distribu tion thereof around both coils. The jacket is provided at points intermediate of its length with proper openings to accommodate' the branches l2 l5 of the two coils l0 14, thus placing the means for supplying the hydrocarbon externally to the jacket and the coils of the burner.

Changes within the scope of the appended claims may be made in the form and proportion of some of the-parts, while their essential features are retained and the spirit of the invention is embodied. Hence I'do not desire to be limited to the precise form -of all the parts as shown, reserving the right to vary therefrom.

Having thus described the invention, what I claim isl. A surface heater comprising a burner arranged to project heat downwardly, a vaporizer located below the burner, a superheater located between the vaporizer and burnerand in communication therewith, said burner being adapted to heat the vaporizer and superheater, and means for supplying a liquid fuel to the vaporizer.

2. The combination withaburner, of avaporizing-coil located below the burner, a superheating-coil intermediate of the Vaporizing-coil and burner, and means for supplying a liquid fuel to the vaporizing-coil, said burner being arranged to heat the coils.

3. The combination with a burner adapted to discharge downwardly, of a vaporizing-coil located below the burner, a superheating-coil located between the burner and vaporizingcoil and communicating with said coil and burner, respectively, means forsupplying a liquid fuel to the vaporizing-coil, and a jacket surrounding said coils.

4. The combination with a burner, and a jacket in proximity to the burner and having inwardly-opening longitudinal flues, of a vaporizing-coil located within the jacket, in communication with the burner and exposed to a heating agent passing through the lines of the jacket, and means forsupplying a liquid fuel to the vaporizing-coil.

5. The combination with a burner and a jacket located to receive the products of combustion therefrom, of a vaporizing-coil communicating with the burner, and a liquid-induction coil located within the jacket and extending into the vaporizing-coil.

6. The combination with a burner and jacket arranged to receive the products of combustion therefrom, of a vaporizing-coil located within the jacket and communicating with the burner, and a liquid-induction coil contained within the vaporiZing-coil and opening into the interior of the vaporizingcoil adjacent to the end of the latter opposite the point at which the communication between the vaporizing-coil and burner is effected, whereby the liquid, and the vapor generated therefrom, are caused to traverse the \f'aporizingcoil from end to end in. both directions.

7. The combination with a burner and su perheating-coil, of a vaporizing-coil closed at one end and communicating at its opposite end with the superheating-coil, and an induction-pipe extending through, and conforming to, the vaporizing-coil and having a discharge extremity contiguous to the closed end of said vaporizing-coil.

8. In a hydrocarbon-burner, the combination of a vaporiZing-coil closed at oneend,

and a liquid-induction pipe extending withinA and discharging at one end into said coil, the

convolutions of the induction-pipe conforming to those of the coil and said pipe being exposed to the action of heated vapor traversing the coil, substantially as described.

9. In a hydrocarbon-burner, the combination of a superheating-coil, a vaporizing-coil closed at one end and communicating at its other end with the superheating-coil, and an induction-pipe having convolutions conforming to, and arranged within, the vaporizingcoil and with its discharge extremity terminating adjacent to the closed end of said vaporizing-coil, substantially as described.

10. In a hydrocarbon-burner, the combination of a superheating-coil, a vaporizing-coil closed at its lower end and communicating at its upper end with the superheating-coil, and an induction -pipe extending through and conforming to the vaporiZing-coil and having a discharge extremity contiguous to the lower closed end of said vaporizing-coil, for the purpose described, substantially as set forth.

1I. In a hydrocarbon-burner, the combination of a vaporizing-coil, a superheating-coil, a coupling between contiguous ends of the two coils, a stutng-box on the coupling, and an inductionpipe extending through the stu fling-box, the coupling and the Vaporizingcoil, substantially as described.

l2. In a hydrocarbon-burner, the combination of a'vaporizing-coil, a superheating-coil, a coupling therefor, a stufiing-box having the IOO IIO

packing and the ring, a pipe-coupling provided with a strainer and compressing the packings, and an induction-pipe extending from the coupling through the packings aud carried through the vaporizing-coil, substantially as described.

13. A hydrocarbonburner comprising a vaporizing-coil, a su perheating-coil connected with the vaporizing-coil and provided with an overhanging member having a discharge-port arranged to direct the flame in a downward direction, and a corrugated jacket surrounding both coils.

14. In a surface heater of the character described, the combination with a burner, a jacket located below the burner to receive the products of combustion therefrom, a liquidinduction coil located within the jacket, means for supplying liquid to one end of the coil, a, vaporizing-coil coincident With the v In testimony that I claim the foregoing as' liquid-induction coil and communicating my own I have hereto affixed my signature in to therewith at the end opposite the point of the presence of two Witnesses.

liquid-supply thereto, and means for eeet-ing 5 communication between theburnerand vapov JOHN B' NEUENDORFF' rizing-eoil at the end opposite the point of Witnesses: communication between the vaporizing-coil CEAS. B. SIGMUND,

and the liquid-induction oeil. ARTIE WEST. 

